public class Example3_7 {
    public static void main(String args []) {
    int sum=0,i,j;
    for(i=1;i<=10;i++) {
    if(i%2==0) {
    continue;
    }
     sum=sum+i;
    }
    System.out.println("sum="+sum);
    for (j=2;j<=100;j++) {
    for (i=2;i<=j/2;i++) {
    if(j%i==0) 
    break;
    }
    if(i>j/2)  {
    System.out.println(""+j+"是素数");
       }
    }
   }
}
